200=2x*x

Solution for 200=2x*x equation:

Simplifying
200 = 2x * x

Multiply x * x
200 = 2x2

Solving
200 = 2x2

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-2x2' to each side of the equation.
200 + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
200 + -2x2 = 0

Add '-200' to each side of the equation.
200 + -200 + -2x2 = 0 + -200

Combine like terms: 200 + -200 = 0
0 + -2x2 = 0 + -200
-2x2 = 0 + -200

Combine like terms: 0 + -200 = -200
-2x2 = -200

Divide each side by '-2'.
x2 = 100

Simplifying
x2 = 100

Take the square root of each side:
x = {-10, 10}